ALL SEASONS THERAPY PLLC
NPI 1891662623
Social Worker - Clinical in Lynnwood, WA
NPI Status: Active since October 17, 2025
Contact Information
5005 200TH ST SW STE A
LYNNWOOD, WA
ZIP 98036
Phone: (360) 317-6011
- Organization
- Social Worker
- Clinical
About ALL SEASONS THERAPY PLLC
This page provides the complete NPI Profile along with additional information for All Seasons Therapy Pllc, a provider established in Lynnwood, Washington operating as a Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1891662623 assigned on October 2025. The practitioner's primary taxonomy code is 1041C0700X. The provider is registered as an organization and their NPI record was last updated one year ago. All Seasons Therapy Pllc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mr. David Greiffenberg Woldtvedt Licsw, Sudp (Owner/ Founder)
- NPI
- 1891662623
- Provider Name
- ALL SEASONS THERAPY PLLC
- Entity Type
- Organization
- Location Address
- 5005 200TH ST SW STE A LYNNWOOD, WA 98036
- Location Phone
- (360) 317-6011
- Mailing Address
- 8705 238TH ST SW UNIT G EDMONDS, WA 98026
- Mailing Phone
- (425) 341-3448
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 10-17-2025
- Last Update Date
- 10-17-2025
- Code Navigator
A clinical social worker like All Seasons Therapy Pllc is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Social Worker Clinical
- Taxonomy Code
- 1041C0700X
- Type
- Behavioral Health & Social Service Providers
- Taxonomy Description
- A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1891662623, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 67 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891662623, enumerated as an "organization" on October 17, 2025.
The provider is located at 5005 200TH ST SW STE A LYNNWOOD, WA 98036 and the phone number is (360) 317-6011.
Social Worker with taxonomy code 1041C0700X and a focus in Clinical.
